Unit 7 Vocab

By Kevin G

Expanded notation

• Is showing place value of the digits. For example, 523 = 500 + 20 + 3

• or 747 = 700 + 20 + 7

Exponent

• The exponent of a number shows you how many times the number is to be used in a multiplication. Like 6^4 is 6x6x6x6 = 1296

• Also like 2^2 is 2x2 = 4

Expression

• An Expression is a mathematical phrase that combines numbers and/or variables using mathematical operations.

• Like 5 + x = 10 or x + y = 3

Factor

• Factors are numbers you can multiply together to get another number

• Like 6 and 9 are both factors • Any number can be a factor

Line graph

• A diagram of lines made by connected data points which represent successive changes in the value of a variable quantity or quantities

apple

orange

pineapple

banan

a048

12

#Cats Dogs Snakes Rabbits

02468

10Animals

Negative number

• A negative number is a real number that is less than zero. Such numbers are often used to represent the amount of a loss or absence. For example, a debt that is owed may be thought of as a negative asset, or a decrease in some quantity may be thought of as a negative increase. Negative numbers are used to describe values on a scale that goes below zero, such as the Celsius and Fahrenheit scales for temperature.

• Such as -4 or -1

Nested parentheses

• Are parentheses inside another set of parentheses.

• Like this (2 x (1 + 3)) = 8 or this (4 + (5 - 2)) = 7

Opposite

• Two integers are opposites if they are each the same distance away from zero, but on opposite sides of the number line

• 9 is -9’s opposite and 1’s opposite is -1• Fun fact: zero doesn’t have a opposite because

it is nether negative nor positive.

Order of operations

• In mathematics and computer programming, the order of operations (sometimes called operator precedence) is a rule used to clarify which procedures should be performed first in a given mathematical expression.

• Like (3+4) x 2 =14• Or (7x2) x 2 =28

Scientific notation

• A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10. The scientific notation of 10,492, for example, is 1.0492 × 10^4.

Standard notation

Standard notation is a simple number that does not contain any decimal points or exponents. So, for example, for the number 526, 5.26 x 10^2 would be scientific notation, 500 + 20 + 6 would be expanded notation, and 526 would be standard notation.